Year	current international $
2000	51.0567925607794
2001	52.1245113538257
2002	54.8570514609492
2003	50.1388733370169
2004	60.069088711522
2005	71.6524472484898
2006	65.3211568079628
2007	72.0527308308553
2008	78.4739629696551
2009	79.3368261318294
2010	86.3882236808242
2011	110.936750380769
2012	133.480706690839
2013	170.527167910075
2014	173.587505612459
2015	175.986961356565
2016	178.08330185112
2017	194.420607481877
2018	253.21664845919
2019	259.95405387171
2020	258.050561082024
2021	302.170883273907